Diameter enlargement of HiPco single-wall carbon nanotubes by heat treatment

被引:83
|
作者
Yudasaka, M
Kataura, H
Ichihashi, T
Qin, LC
Kar, S
Iijima, S
机构
[1] NEC Corp Ltd, ICORP, JST, Tsukuba, Ibaraki 3058501, Japan
[2] Tokyo Metropolitan Univ, Hachioji, Tokyo 1920397, Japan
[3] Meijo Univ, Tempaku Ku, Nagoya, Aichi 4688502, Japan
关键词
D O I
10.1021/nl010037x
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The diameters of HiPco single-wall carbon nanotubes were increased by heat treatments. The original diameters estimated from Raman spectra were In the range of 0.79 to 1.2 nm; they Increased with the heat-treatment temperature, reaching about 1.47 nm after 1800 degreesC heat treatment. Thermogravimetric analyses showed that the burning temperature of the HiPco tubes rose by about 350 degreesC after 1800 degreesC heat treatment, and the metal content, which was about 30% in the original HiPco, decreased to about 2% after heat treatment at 1800 degreesC.
引用
收藏
页码:487 / 489
页数:3
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